.page-products {
  --prod-stripe: rgba(198, 193, 180, 0.14);
  --prod-hilite: rgba(192, 138, 62, 0.14);
}

/* ---------- 封面 ---------- */
.page-products .prod-cover {
  position: relative;
  background: var(--ink);
  color: var(--linen);
  padding: 36px 0 40px;
  overflow: hidden;
}

.page-products .prod-cover::after {
  content: "";
  position: absolute;
  left: 0;
  right: 0;
  bottom: 0;
  height: 96px;
  background-image: linear-gradient(
    104deg,
    transparent 0 56%,
    rgba(53, 224, 200, 0.22) 56% 56.4%,
    transparent 56.4%
  );
  pointer-events: none;
}

.page-products .prod-cover__inner {
  position: relative;
  z-index: 1;
}

.page-products .prod-cover__eyebrow {
  color: var(--copper-lift);
  margin: 0 0 14px;
}

.page-products .prod-cover__title {
  margin: 0;
  font-family: var(--font-title);
  font-weight: 900;
  font-size: clamp(28px, 6.4vw, 52px);
  line-height: 1.14;
  letter-spacing: 0.01em;
  color: var(--paper);
  max-width: 20em;
}

.page-products .prod-cover__lede {
  margin: 18px 0 0;
  max-width: 60ch;
  color: rgba(239, 235, 225, 0.82);
}

.page-products .prod-cover__index {
  list-style: none;
  margin: 30px 0 0;
  padding: 0;
  border-top: 1px solid rgba(198, 193, 180, 0.28);
}

.page-products .prod-cover__item {
  display: grid;
  grid-template-columns: 34px 1fr;
  gap: 12px;
  align-items: baseline;
  padding: 13px 0;
  border-bottom: 1px solid rgba(198, 193, 180, 0.28);
}

.page-products .prod-cover__num {
  font-family: var(--font-mono);
  font-size: 12px;
  color: var(--copper);
  letter-spacing: 0.06em;
}

.page-products .prod-cover__item a {
  color: var(--linen);
  font-size: 16px;
  text-decoration: none;
  border-bottom: 1px solid transparent;
  transition: color var(--row) var(--ease), border-color var(--row) var(--ease);
}

.page-products .prod-cover__item a:hover,
.page-products .prod-cover__item a:focus-visible {
  color: var(--copper-lift);
  border-bottom-color: var(--copper-lift);
}

/* ---------- 通用段落 ---------- */
.page-products .prod-intro {
  margin: 12px 0 0;
  max-width: 62ch;
  color: var(--muted);
}

.page-products .prod-table__note,
.page-products .prod-steps__note,
.page-products .prod-map__note,
.page-products .prod-devices__note {
  margin-top: 16px;
}

.page-products .section-title {
  margin-top: 6px;
}

/* ---------- 自检清单 ---------- */
.page-products .prod-check {
  list-style: none;
  margin: 26px 0 0;
  padding: 0;
  border-top: 1px solid var(--line);
}

.page-products .prod-check__item {
  display: grid;
  grid-template-columns: 34px 1fr;
  gap: 12px;
  padding: 16px 0;
  border-bottom: 1px solid var(--line);
}

.page-products .prod-check__idx {
  font-family: var(--font-mono);
  font-size: 12px;
  line-height: 2.1;
  color: var(--copper);
}

.page-products .prod-check__title {
  margin: 0;
  font-family: var(--font-title);
  font-weight: 700;
  font-size: 18px;
  line-height: 1.4;
  color: var(--graphite);
}

.page-products .prod-check__text {
  margin: 6px 0 0;
  font-size: 14px;
  line-height: 1.75;
  color: var(--muted);
}

.page-products .prod-check__figure {
  margin: 24px 0 0;
}

/* ---------- 表格 ---------- */
.page-products .prod-versions__figure {
  margin: 24px 0 0;
}

.page-products .prod-table__wrap {
  margin-top: 26px;
  border: 1px solid var(--line);
}

.page-products .prod-table__caption {
  caption-side: top;
  text-align: left;
  padding: 14px 16px;
  font-family: var(--font-title);
  font-weight: 700;
  font-size: 14px;
  color: var(--muted);
  border-bottom: 1px solid var(--line);
  background: var(--paper);
}

.page-products .prod-table {
  width: 100%;
  border-collapse: collapse;
  background: var(--paper);
  font-size: 14px;
  line-height: 1.7;
}

.page-products .prod-table thead th {
  text-align: left;
  padding: 12px 16px;
  background: var(--ink-2);
  color: var(--paper);
  font-family: var(--font-title);
  font-weight: 700;
  font-size: 14px;
  letter-spacing: 0.02em;
  white-space: nowrap;
}

.page-products .prod-table tbody th,
.page-products .prod-table tbody td {
  text-align: left;
  padding: 14px 16px;
  vertical-align: top;
  border-bottom: 1px solid var(--line-soft);
  color: var(--graphite);
  font-weight: 400;
}

.page-products .prod-table tbody th {
  color: var(--copper);
  font-family: var(--font-mono);
  font-size: 14px;
  white-space: nowrap;
}

.page-products .prod-table tbody tr:nth-child(even) {
  background: var(--prod-stripe);
}

.page-products .prod-table tbody tr {
  transition: background var(--row) var(--ease);
}

.page-products .prod-table tbody tr:hover,
.page-products .prod-table tbody tr:focus-within {
  background: var(--prod-hilite);
}

/* ---------- 三步走法 ---------- */
.page-products .prod-steps__figure {
  margin: 24px 0 0;
}

.page-products .prod-steps {
  position: relative;
  margin-top: 28px;
}

.page-products .prod-steps__radio {
  position: absolute;
  width: 1px;
  height: 1px;
  opacity: 0;
  pointer-events: none;
}

.page-products .prod-steps__tabs {
  border-top: 1px solid var(--line);
}

.page-products .prod-steps__tab {
  position: relative;
  display: flex;
  align-items: baseline;
  gap: 14px;
  padding: 16px 0;
  border-bottom: 1px solid var(--line);
  cursor: pointer;
  transition: color var(--row) var(--ease);
}

.page-products .prod-steps__tab::after {
  content: "";
  position: absolute;
  right: 0;
  bottom: -1px;
  width: 44px;
  height: 1px;
  background: var(--neon);
  opacity: 0.5;
  transform: rotate(-14deg);
  transform-origin: right center;
  transition: opacity var(--row) var(--ease);
}

.page-products .prod-steps__num {
  font-family: var(--font-mono);
  font-weight: 700;
  font-size: 46px;
  line-height: 1;
  color: var(--stone);
  transition: color var(--row) var(--ease);
}

.page-products .prod-steps__name {
  font-family: var(--font-title);
  font-weight: 700;
  font-size: 16px;
  color: var(--graphite);
}

.page-products .prod-steps__tab:hover .prod-steps__num {
  color: var(--copper-lift);
}

.page-products #prod-step-1:checked ~ .prod-steps__tabs [for="prod-step-1"] .prod-steps__num,
.page-products #prod-step-2:checked ~ .prod-steps__tabs [for="prod-step-2"] .prod-steps__num,
.page-products #prod-step-3:checked ~ .prod-steps__tabs [for="prod-step-3"] .prod-steps__num {
  color: var(--copper);
}

.page-products #prod-step-1:checked ~ .prod-steps__tabs [for="prod-step-1"]::after,
.page-products #prod-step-2:checked ~ .prod-steps__tabs [for="prod-step-2"]::after,
.page-products #prod-step-3:checked ~ .prod-steps__tabs [for="prod-step-3"]::after {
  opacity: 1;
}

.page-products #prod-step-1:focus-visible ~ .prod-steps__tabs [for="prod-step-1"],
.page-products #prod-step-2:focus-visible ~ .prod-steps__tabs [for="prod-step-2"],
.page-products #prod-step-3:focus-visible ~ .prod-steps__tabs [for="prod-step-3"] {
  outline: 2px solid var(--neon);
  outline-offset: 2px;
}

.page-products .prod-steps__panel {
  display: none;
  padding: 18px 20px;
  background: var(--paper);
  border: 1px solid var(--line);
  border-top: none;
}

.page-products .prod-steps__panel p {
  margin: 0;
  max-width: 62ch;
  font-size: 16px;
  line-height: 1.75;
  color: var(--graphite);
}

.page-products #prod-step-1:checked ~ .prod-steps__panels [data-panel="1"],
.page-products #prod-step-2:checked ~ .prod-steps__panels [data-panel="2"],
.page-products #prod-step-3:checked ~ .prod-steps__panels [data-panel="3"] {
  display: block;
}

/* ---------- 旧版映射 ---------- */
.page-products .prod-map__figure {
  margin: 24px 0 0;
}

.page-products .prod-map__list {
  list-style: none;
  margin: 26px 0 0;
  padding: 0;
  border-top: 1px solid var(--line);
}

.page-products .prod-map__row {
  display: grid;
  grid-template-columns: 1fr 34px 1fr;
  align-items: center;
  gap: 10px;
  padding: 13px 0;
  border-bottom: 1px solid var(--line-soft);
}

.page-products .prod-map__old {
  font-size: 14px;
  color: var(--muted);
}

.page-products .prod-map__new {
  font-size: 14px;
  font-weight: 700;
  color: var(--graphite);
  text-align: right;
}

.page-products .prod-map__link {
  position: relative;
  height: 1px;
  background: var(--neon);
  opacity: 0.7;
}

.page-products .prod-map__link::after {
  content: "";
  position: absolute;
  right: 0;
  top: -2px;
  width: 5px;
  height: 5px;
  border-radius: 50%;
  background: var(--neon);
}

.page-products .prod-map__note a {
  color: var(--copper);
  text-decoration: none;
  border-bottom: 1px solid var(--copper);
}

.page-products .prod-map__note a:hover,
.page-products .prod-map__note a:focus-visible {
  color: var(--copper-lift);
  border-bottom-color: var(--copper-lift);
}

/* ---------- 设备适配 ---------- */
.page-products .prod-devices {
  display: grid;
  grid-template-columns: 1fr;
  gap: 26px;
  margin-top: 28px;
}

.page-products .prod-devices__frame {
  display: flex;
  flex-direction: column;
  gap: 8px;
  padding: 12px;
  border: 1px solid var(--stone);
  background: var(--paper);
  box-shadow: var(--shadow-soft);
}

.page-products .prod-devices__bar {
  display: block;
  height: 6px;
  background: var(--stone);
  opacity: 0.55;
}

.page-products .prod-devices__bar--short {
  width: 56%;
}

.page-products .prod-devices__item--desktop .prod-devices__frame {
  aspect-ratio: 16 / 10;
}

.page-products .prod-devices__item--tablet .prod-devices__frame {
  aspect-ratio: 4 / 3;
}

.page-products .prod-devices__item--phone .prod-devices__frame {
  aspect-ratio: 9 / 16;
  max-width: 180px;
}

.page-products .prod-devices__label {
  margin: 12px 0 0;
  font-size: 14px;
  line-height: 1.7;
  color: var(--muted);
}

.page-products .prod-devices__label strong {
  display: block;
  font-family: var(--font-title);
  font-weight: 700;
  font-size: 16px;
  color: var(--graphite);
}

/* ---------- 常见偏差 ---------- */
.page-products .prod-fix {
  list-style: none;
  margin: 26px 0 0;
  padding: 0;
  border-top: 1px solid var(--line);
}

.page-products .prod-fix__item {
  padding: 16px 0;
  border-bottom: 1px solid var(--line);
}

.page-products .prod-fix__title {
  margin: 0;
  font-family: var(--font-title);
  font-weight: 700;
  font-size: 18px;
  color: var(--graphite);
}

.page-products .prod-fix__text {
  margin: 6px 0 0;
  font-size: 14px;
  line-height: 1.75;
  color: var(--muted);
}

.page-products .prod-fix__aside {
  margin-top: 24px;
  padding: 20px;
  background: var(--ink);
  color: var(--linen);
  border-left: 2px solid var(--copper);
}

.page-products .prod-fix__aside-title {
  margin: 0;
  font-family: var(--font-title);
  font-weight: 700;
  font-size: 16px;
  color: var(--paper);
}

.page-products .prod-fix__aside-text {
  margin: 10px 0 0;
  font-size: 14px;
  line-height: 1.75;
  color: rgba(239, 235, 225, 0.78);
}

.page-products .prod-fix__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin: 18px 0 0;
}

/* ---------- 响应式 ---------- */
@media (min-width: 768px) {
  .page-products .prod-cover {
    padding: 52px 0 56px;
  }

  .page-products .prod-check__item {
    grid-template-columns: 44px 1fr;
    gap: 16px;
    padding: 18px 0;
  }

  .page-products .prod-check__figure {
    position: sticky;
    top: calc(var(--frame-h) + 24px);
    margin-top: 0;
  }

  .page-products .prod-steps__tabs {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
  }

  .page-products .prod-steps__tab {
    padding: 20px 18px 18px 0;
    border-bottom: 1px solid var(--line);
    border-right: 1px solid var(--line-soft);
  }

  .page-products .prod-steps__tab:last-child {
    border-right: none;
  }

  .page-products .prod-devices {
    grid-template-columns: 3fr 2fr 1fr;
    align-items: end;
    gap: 20px;
  }

  .page-products .prod-devices__item--phone .prod-devices__frame {
    max-width: none;
  }

  .page-products .prod-fix__aside {
    margin-top: 26px;
  }
}

@media (min-width: 1024px) {
  .page-products .prod-cover__index {
    grid-template-columns: 1fr 1fr;
    column-gap: 48px;
  }

  .page-products .prod-map__row {
    grid-template-columns: 1fr 56px 1fr;
    padding: 14px 0;
  }

  .page-products .prod-map__old,
  .page-products .prod-map__new {
    font-size: 15px;
  }
}

@media (max-width: 720px) {
  .page-products .prod-table thead {
    display: none;
  }

  .page-products .prod-table,
  .page-products .prod-table tbody,
  .page-products .prod-table tr,
  .page-products .prod-table th,
  .page-products .prod-table td {
    display: block;
    width: 100%;
  }

  .page-products .prod-table tr {
    padding: 6px 0 10px;
    border-bottom: 1px solid var(--line);
  }

  .page-products .prod-table tr:last-child {
    border-bottom: none;
  }

  .page-products .prod-table tbody th,
  .page-products .prod-table tbody td {
    padding: 8px 16px;
    border-bottom: none;
  }

  .page-products .prod-table tbody th {
    font-size: 16px;
  }

  .page-products .prod-table tbody td::before {
    content: attr(data-label);
    display: block;
    margin-bottom: 2px;
    font-family: var(--font-title);
    font-size: 12px;
    letter-spacing: 0.04em;
    color: var(--stone);
  }
}

@media (max-width: 400px) {
  .page-products .prod-cover__item,
  .page-products .prod-check__item {
    grid-template-columns: 28px 1fr;
    gap: 10px;
  }

  .page-products .prod-steps__num {
    font-size: 34px;
  }

  .page-products .prod-map__row {
    grid-template-columns: 1fr 20px 1fr;
    gap: 8px;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-products .prod-cover__item a,
  .page-products .prod-check__item,
  .page-products .prod-table tbody tr,
  .page-products .prod-steps__num,
  .page-products .prod-steps__tab,
  .page-products .prod-steps__tab::after {
    transition: none;
  }
}